In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Purple is a color intermediate between blue and red. It is similar to violet, but unlike violet, which is a spectral color with its own wavelength on the visible spectrum of light, purple is a composite color made by combining red and blue. According to surveys In Europe and the U.S., purple is the color most often associated with royalty, magic, mystery and piety. When combined with pink, it is associated with eroticism, femininity and seduction., Thrombocytopenic purpura are purpura associated with a reduction in circulating blood platelets which can result from a variety of causes , such as kaposi sarcoma ., Scurvy is a disease resulting from a lack of vitamin C. Early symptoms include weakness, feeling tired, curly hair, and sore arms and legs. Without treatment, decreased red blood cells, gum disease, and bleeding from the skin may occur. As scurvy worsens there can be poor wound healing, personality changes, and finally death from infection or bleeding.
Scurvy is caused by not enough vitamin C in the diet. It typically takes at least a month of little to no vitamin C before symptoms occur. In modern times, it occurs most commonly in people with mental disorders, unusual eating habits, alcoholism, and old people who live alone. Other risk factors include intestinal malabsorption and dialysis. Humans and certain other animals require vitamin C in their diets to make the building blocks for collagen. Diagnosis is typically based on physical signs, X-rays, and improvement after treatment.
Treatment is with vitamin C supplements taken by mouth. Improvement often begins in a few days with complete recovery in a few weeks. Sources of vitamin C in the diet include citrus fruit and a number of vegetables such as tomatoes and potatoes. Cooking often decreases vitamin C in foods.
Scurvy is currently rare. It occurs more often in the developing world in association with malnutrition. Rates among refugees are reported at 5% to 45%. Scurvy was described as early as the time of ancient Egypt. It was a limiting factor in long distance sea travel, often killing large numbers of people. A Scottish surgeon in the Royal Navy, James Lind, was the first to prove it could be treated with citrus fruit in a 1753 publication. His experiments represented the first controlled trial. It took another 40 years before the British Navy began giving out lemon juice routinely., Purpura is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin usually secondary to vasculitis or dietary deficiency of vitamin C (scurvy). They measure 0.31 cm (310 mm), whereas petechiae measure less than 3 mm, and ecchymoses greater than 1 cm., Skin is the soft outer covering of vertebrates. Other animal coverings, such as the arthropod exoskeleton have different developmental origin, structure and chemical composition. The adjective cutaneous means "of the skin" (from Latin "cutis", skin). In mammals, the skin is an organ of the integumentary system made up of multiple layers of ectodermal tissue, and guards the underlying muscles, bones, ligaments and internal organs. Skin of a different nature exists in amphibians, reptiles, and birds. All mammals have some hair on their skin, even marine mammals like whales, dolphins, and porpoises which appear to be hairless.
The skin interfaces with the environment and is the first line of defense from external factors. For example, the skin plays a key role in protecting the body against pathogens and excessive water loss. Its other functions are insulation, temperature regulation, sensation, and the production of vitamin D folates. Severely damaged skin may heal by forming scar tissue. This is sometimes discoloured and depigmented. The thickness of skin also varies from location to location on an organism. In humans for example, the skin located under the eyes and around the eyelids is the thinnest skin in the body at 0.5 mm thick, and is one of the first areas to show signs of aging such as "crows feet" and wrinkles. The skin on the palms and the soles of the feet is 4 mm thick and the back is 14 mm thick and is the thickest skin in the body. The speed and quality of wound healing in skin is promoted by the reception of estrogen., A petechia, plural petechiae, is a small (12 mm) red or purple spot on the skin, caused by a minor bleed from broken capillary blood vessels., Vasculitis (plural: "vasculitides") is a group of disorders that destroy blood vessels by inflammation. Both arteries and veins are affected. Lymphangitis is sometimes considered a type of vasculitis. Vasculitis is primarily caused by leukocyte migration and resultant damage., Bleeding, also known as hemorrhaging or haemorrhaging, is blood escaping from the circulatory system. Bleeding can occur internally, where blood leaks from blood vessels inside the body, or externally, either through a natural opening such as the mouth, nose, ear, urethra, vagina or anus, or through a break in the skin.
Hypovolemia is a massive decrease in blood volume, and death by excessive loss of blood is referred to as exsanguination. Typically, a healthy person can endure a loss of 1015% of the total blood volume without serious medical difficulties (by comparison, blood donation typically takes 810% of the donor's blood volume). The stopping or controlling of bleeding is called hemostasis and is an important part of both first aid and surgery., Subject: thrombocytopenic purpura, Relation: instance_of, Options: (A) 1 (B) adjective (C) animal (D) association (E) chemical (F) citrus (G) color (H) composition (I) condition (J) damage (K) diet (L) disease (M) environment (N) fruit (O) group (P) inflammation (Q) key (R) killing (S) magic (T) month (U) navy (V) number (W) opening (X) organ (Y) part (Z) person ([) production (\) quality (]) sea (^) skin (_) system (`) temperature (a) tissue (b) trial (c) vitamin (d) volume (e) water
disease